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(No Model.) 2 Sheets-Sheet 1.

B. A. FISKE.

STOGK INDICATOR.

Patented Oct. 2, 1883.

I INVENTOR:

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WITNESSES /c). l5). Jam" (bf/64%..

1 (No Model.) 2 Sheets-Sheet 2. B. A. PISKE.

STOCK INDICATOR.

Patented Oct. 2, 1883.

. INVENTOB i saw! UNITED, STATES PATE T OFFIcE.

BRADLEY FISKE, OF NEW YORK, N. Y.

STOCK-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 285,805, dated October 2, 188 3.

Application filed May 1'7, 1883 (No model.)

To aZZ whom, it may concern:

Be it known that I. BRADLEY A. FISKE, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Electric Stock-Indicators; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

Stock-indications as at present made are printed upon strips of paper. In order to find at what figure any stock stands, it is necessary, therefore, to go up to the instrument and to read through all the quotations printed thereupon until the one sought is found. By my invention the names of stocks will be permanently affixed to a dial, and inplain sight, while opposite to each name will be clearly shown, through a slot cut in the dial, the figure at which the stock corresponding stands. This desirable result I accomplish by placing under a slot opposite the name of each stock. a series of wheels, each wheel having imprinted upon its rim a number of figures, one figure of each wheel being visible'through the slot cut in the dial. By revolving the wheels of any series, then, it is clear that different combinations of figures Will be shown. By my invention these=wheels are so revolved by electro-magnetic apparatus that the combinations.

shown through the slot opposite each stock indicate the figure-at which that stock stands. I carry out this idea by the mechanism illus trated in the accompanying drawings, in which Figure 1 represents a front view of the indicator, the dial being cut away, as shown by the brokenline, to expose the arrangement of the different series of wheels beneath, and the plate on which these rest being also cut away,

as shown, in order. to expose the actuating mechanism. Fig. 2 represents one series of wheels, upon the rims of which figures are painted. Fig. 3 is a vertical section of Fig.

1 on line a: m. Fig. 4 is a diagrammatic plan view of the transmitter. Fig. 5 is a detailed View illustrating the manner of engagement of driving-wheels with one series. of wheels.

Similar letters refer to similar parts throughout the several views.

The wheel to is supported upon the pivot 13, and given a rotating movement by the action of a spring or weight in the box 0 acting 5 through gearing upon the shaft 1). This rotation is resisted by the escape-wheel e and pallet (2. The upper part of thepallet is a permanent magnet,and lies as a polarized armature between the poles of the electro-magnets 6 m m. When, therefore, alternating currents are sent through these electro-magnets, the escape-wheel e, and with it the wheel w, is allowed to revolve. This causes the two driving-wheels s and s to pass in succession under 6 the first wheel t of eachseries of wheels; but projecting upward from the surfaces of s and s are two edgesflc and 70, while out in the under surfaces of the wheel 25 t, &c., are corresponding grooves, which receive the edges is and k. 7 These edges is and it pass then in succession through all the grooves cut in the wheels t t, &c. When k, for instance, lies in the groove of the little wheel t, it maintains toward t the same relation that a screw-driver does 7 toward a screw in which it is inserted, so that if sis at that time given a half-revolution, it will also be given a half-revolution. The way in which 8 is given a half-revolution is by sending through the electro-magnet M M a 8( strong current. When this is done the ar1na ture a is attracted. This armature is attached to the pallet b, which engages with theratchetwheel 1', so that when a is attracted r is turned one tooth. But the ratchet r is on the same 8:

shaft with the gear-wheels f and f, and these in turn are geared to the driving-wheels s and s, respectively. An attraction of a therefore causes s and s to turn in opposite directions. Now, the number of teeth on the ratchet 9c is eight, and f and f are four times as large as s ands, so that each. time the soft-iron armature a is attracted the drivingwheels s and s are given a semi-revolution. Therefore, if

k is inserted in the groove int, 25 will receive a 5 semi-revolution in one direction, while if It lies in the grooves in f, twill receive a semi revolution in the opposite direction. It is intended to have the distance between any two. a

series of wheels (the distance between t and t, ,,ro

for instance) great enough to allow of inserting either k or k in one of .themwithout disturbing the other. The little wheels t t &c., are geared to the wheels a u, &c., which are four times as large, so that a half-revolution f t produces one-eighth of a revolution of a. Upon a are marked the fractions g, i, i," is =3, *3, if, and if, so that each time a is attracted the fraction which appears under the slotis increased or decreased one-eighth, according to whether k or k is inserted in the groove. Upon 3/ and z are marked ten digits each. a, 1 and z are connected together in a well-known manner, shown in Fig. 2. A tooth projects :from;

the upper surface of a, which, once in each revolution, strikes one of ten. teeth-on the rear surface of 1], while atooth.projectsfrom the front surface of. y,which engages once in a.

revolution with oneof. ten. teeth on the back ,means represented, in-which theescapem '1 ntof 2. .Therefore, ten revolutions ofu produce. one of y, and ten revolutions of 3 produce one.

It is obvious. that; anotherwheel. may beiadded to'each,or.any.series,'if desired. Themannerin. which thisapparatus is con- .trolledfrom a. distant point can .be seenfrom of z.

referring. to Fig. .4, which represents a transmitter. placed at. a centralstatiou-or. other convenient point. By revolving the pointer I the polarity of the current sent to line the batteryB is reversed by thewell-knoivn causes alternate contacts of .H with Land I do not. limit myself, however, to this special A A, 'or A, &c., or twice for each stock.. By

turning the pointer .1 then, alternating (aim. .rents are sent through the electromagnctsgaid= on. and 'M M, which, in the manner already.

described, causes the knife-edgesk and k; to

. engage successively with thedifferent series pose, again, that we now move the pointerj 1 until itstands opposite the upper point, A,

. edge k to, engage with the series of wheels.

of wheels arranged. around the dial .of the indicator. Suppose we move the.- pointer. P

to the name Erie in the indicator. S1ipof the .nameWEriefi 1 .This. will cause the 1 opposite the name Eric on the indicator, If we .now press the key K, this will. add the Had we pressed the key K while the pointer.

current of the battery B, which will so increase the magnetization of the electro-mag.-.. nets M M that the force of the retractile springqwill be overcome and the .numberindicating .Erie stock will be increased oneeighth.

P was pointing. to the lower. .point, A,.of the name Erie, and while the edge is was (:11-

dial would be made by moving the pointer I.

opposite to the upper point, A, of the name Lackawanna and pressing K three tln es. It is clear that in carrying my invention into practice one transmitter at a central station can be connected with any desired munber of indicators placed in business-offices, hotels, &c., and that the indications of the value of each stock canbecorrected, from the centraloffice whenever such stock goes up or .down, so that any person insight of such an indicator can tell at a glance the value of any stock at thatinstant with the. same case and readiness that he can tell the time of day by glancing at the dial ct a clock.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

,1. An apparatus for presenting an indica- ,tion of the. figures at which stocks stand, in which the names of a number of stocks are shown upon. a. dial, and opposite each. name thefigures representing the value of that stock,

said figures being upon the rims of wheels 0pmethod of transmitting alternating. currents, as this forms no part of my invention....'l}he. .number of teeth in theescape-wheel Dissuch .thata reversal of the current occurs eachv time the pointer Piarrives opposite, a vpoint,

erated by electromagnetic means, substantially. as described.

' 2. The dial of a stock-indicator upon which are thenames of .stocks, in combination with simultaneously the values of the stocks, and an electroauagnetic apparatus, by .means of which anyseries of wheels can be operated in such manner as to change the figures on that series of wheels,showing through the slot when.- ever the stock corresponding goes up ordown, substantially .as described.

3. The combination of a number ofseries of .wheels having figures .upon their rims, which show through slots in the dial of a stock-indicator in such manner. that the figures of each series thus showing indicate the figure atwhich that stock stands, with an electro-magnetical- .ly-operated driving-wheel mounted upon a revolving frameor arm, and arranged to en gage with each series in succession, and to give motion to any desired series, substantially as described.

4. The combination of thc driving.-wheels s and s, secured to a frame or arm revolved by electro-magnetic apparatus, with a number of series of wheels upon whose rims figures are placed, in each series of which the drivingwheels 3 and s engage successively as the arm or frame revolves, as and for the purpose set forth.

i 5. The combination of the wheels t t 15, 850i, arranged in acircle, with the driving-wheels s and s, carrying the edges k andk, said driving-Wheels being mounted upon a frame or arm revolved by eleetro-magnetic apparatus, as and for the purpose set forth.

6. A dial upon which are the names of stocks, in combination with a number of series of frame W, revolved by electromagnetic apparatus, the driving-wheels s and .9, arranged to engage with each series of wheels. in succession, the electro-niagnets m m and M M, the

escape-wheel e, and pallet e, as and for the purpose set forth.'

ratchet-wheel 0-, pallet b, driving-wheels s and s, edges is and k, gear-wheels f and f, series of indicating-wheels tn 3 z t u y 2 &c., and

the dial having names of stocks thereon, as

and for the purpose set forth.

' BRADLEY A. FISKE.

\Vitnesses: V S. D; MoTT,

ALBERT P. MORIARTY. 

